The company's flagship product is the text based game, GemStone IV, which went live in November 2003, with predecessor games running back to 1988. GemStone was originally accessed through General Electric's internet service providerGEnie, later becoming accessible through AOL, Prodigy, and CompuServe before Simutronics finally moved all their games to their own domain in 1997.

Hero's Journey,[4] an unreleased graphical MMORPG utilizing the "HeroEngine", an MMO engine developed by Simutronics for the game. The game had been in development since the late 1990s, but its release date was pushed back several times and in March 2009, all remaining developers and game masters assigned to Hero's Journey were laid off or reassigned.[5] Hero's Journey as well as the engine behind it was sold off due to the economic decline in 2008-2009. [6]

Dragons of Elanthia (currently in Beta), a multiplayer third-person shooter in which players select different dragons and riders, each with unique abilities, to fight each other.[7] The game uses the Unity game engine.

Simutronics' products GemStone IV, DragonRealms, Modus Operandi, and Alliance of Heroes are text-based multiplayer games built on a proprietary Interactive Fiction Engine (IFE) written in the C programming language. The IFE is responsible for managing the server's memory, interacting with the game's database, and communicating with the clients. It also includes an interpreter for the proprietary GemStone Scripting Language (GSL), a relatively simple language which abstracts away most of the complex details that the IFE handles. Originally, many core game commands (such as those relating to movement and inventory management) were implemented directly by the IFE. Over time, most of those have been migrated to GSL to allow for easier modification.

HeroEngine is a 3D game engine and server technology platform developed specifically for building MMO-style games, based around a system similar to the IFE using the Hero Script Language (HSL). Originally developed for the company's own game Hero's Journey, the engine has since been licensed by other companies.[11] Simutronics sold the HeroEngine to Idea Fabrik, Plc. on August 5, 2010.[12]

"Recruiting Strategies: Motivation". Inc. Magazine. 15 October 1999. THE BRIGHT SIDE OF THE FORCE: With all the hype that surrounded the opening of Star Wars: Episode I --The Phantom Menace, it's no surprise that the film created a minor truancy problem for some companies. Like numerous other CEOs whose companies made this year's list, David Whatley of Simutronics Corp. (#295), in Rockville, Md., decided to do a preemptive strike. "I thought it would be more cost-effective to see the movie as a group," he says. "It was either that or have people call in sick for a week."